Wrench.



T. R. HOLLAND.

WRENCH.

APPLICATION FILED APR. 16. 1914.

Patented Dec. 15, 1914.

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"NE NORRIS PETERS 50-. FHOm-LITHO.. WASHINGTON, D C

THOMAS H. HOLLAND, 0F STBATFORD, WASHINGTON.

WRENCH.

Application filed April l8, 1914. Serial No. 832,862.

To all whom it may concern:

Be it known that L'THoMAs R. HOLLAND, a citizen of the United States, residing at Stratford, in the county of Grant and State of Washington, have invented certain new and useful Improvements in Wrenches, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to new and useful improvements in wrenches, and more particularly to that class of wrenches which are generally designated as pipe wrenches.

An object of this invention is the provi sion of a wrench which comprises a handle having a stationary jaw on one end thereof, and a swinging curved jaw which is pivotally connected at one end to the handle adjacent the stationary jaw thereof, the jaws of the wrench being adapted to cooperate to grip a pipe or other similar object therebetween.

A furtherobject of this invention is the provision of awrench which comprises a handle having a'stationary annular jaw formed on one end thereof, and aswinging jaw pivotally connected to one end of the handle, the wrench also comprising a supplemental jaw which is pivotally connected to the stationary jaw for v engagement against the peripheral edge thereof, the supplemental jaw being'provided with a coin cave" outer face and being adapted for use in connection with pipes of relatively small diameters so as to provide avseat for such pipes to hold the samein position with relation to the stationary aw when gripped by the swinging jaw.

With these and other objects in view, my inventionconsists in the novel construction, combination, and arrangement of parts, to be hereinafter more fully described, claimed, and illustrated in the accompanying. drawing, in which, j v

Figure l is an elevational view looking at one side of the wrench; Fig. 2 is an elevational view looking at one edge of the same and Fig. 3 is a detail view of the supplemental jaw detached. v

' Referring more particularly to the drawing, the numeral 1 designates the handle of my improved wrench, which is provided on its outer end with an enlarged substantially annular rigid jaw 2, the peripheral edge of which is provided with'a series of corrugw Specification of Letterslatent. P t t d 15, 1914 tions to form gripping teeth 3. A curved i swinging jaw 4 is also provided for cooperat1on with the rigid jaw 3, the inner end of the jaw being pivotally connected to the handle adjacent the jaw 2 by the links a The inner po-rtion of the jaw at is curved to conform to-the curvature of the peripheral edge of the jaw 2, and the inner edge of the jaw 4c is also formed with a series of corrugations to provide teeth 6 which are adapted to coiiperate with the teeth 3 on the jaw 2,

I to securely grip the work between the jaws.

A pivot pin 7 is disposed through the axial center of the annular jaw 2, and pivotally mounted upon the opposite'ends of the pin 7 are the inner ends of a pair of links 8, the

outer ends of which project beyond the peripheral edge ofthe jaw 2. The projecting portions of the'links 8 are formed with lon gitudina-lly extending slots 9 and slidably mounted in the slots 9 is a pivot pin 10, and pivotally mounted upon the pivot pin 10 be tween the links 8 is-a supplemental jaw 11; The jaw 11 is provided with aconcave inner face which is curved to conform to the curvature of the peripheryof the jaw 2, the inner face of thej aw 11 being provided with a series of transversely extending teeth 12. The outer face of'the jaw 11 is curved inwardly to form a seat 13 for. the reception of a pipe or other similar object of a relatively small diameter.

In the practical use'of my improved 2 with the work and upon rotation'of the handie in the proper direction, the jaw 4: automatically grips against the pipe or other object so that the same may be readily turned into place. Whenit is desired to use the wrench in connection with apipe of a rela tively small diameter, the supplemental jaw 11 is swung to the desired position with relation to the peripheral edgeof the jaw 2, the weight of the aw 11 moving the pivot pin inwardly of the slots 9 so that the teeth 12 on the jaw 11 engage with the teeth 3 of the I head 2 to hold the jaw 11 in the desired p0- sition with relation to the jaw 2. When the tit),

curved outer face of the jaw 11 is engaged with the work, the aw 4 may be closed about the work in the heretofore described manner to turn the work in its support.

It will be understood that the supplemental jaw 11 is only used in connection with pipes or other similar articles having relatively small diameters, and that when the jaw 11 is not desired for use, the same is moved outwardly to disengage the teeth 12 from the teeth 3, so that the jaw may be swung on its pivot pin against the opposite side or the handle from the pivotal connection of the jaw at so as to be out of the way, or may be entirely removed from the jaw 2 of the wrench. To hold the inner end of the jaw t against the jaw 2, pair ofpins 1e are projected outwardly from the opposite side faces of the handle 1, the pins engaging against the inner edges of the links 5 to limit the inward movement thereof.

From the above descr1pt1on, taken 1n connection with the accompanying drawing, it

will be seen that I have provided a wrench which will automatically grip the work to which the wrench is adapted for connection, and that by the provision of the supplemental jaw 11, pipes or other similar objects of greatly-varying sizes may be manipulated by the wrench.

It will, of course, be understood that the jaws of the wrench will readily grip nuts of any shape, so that the same may be quickly turned upon the bolts by proper manipula tion of the handle 1.

Having thus fully described my invention, what I desire to secure and claim by Letters Patent, is

1. A wrench comprising a handle having an annular jaw formed on one end thereof, a swinging jaw pivotally connected at one end to said handle and adapted for cooperation with the annular j awthereon, and a supplemental jaw pivotally connected to 5. said annular jaw, said supplemental jaw being adapted for cooperation with said swinging jaw to grip work therebetween.

2. A wrench comprising a handle having an annular jaw formed on one end thereof, a swinging jaw pivotally connected at one end to the handle for codperation with the annular jaw, a supplemental jaw pivotally connected to said annular jaw, said supplemental jaw being adapted for engagement against the peripheral edge of said annular jaw, and means for holding said supplemental jaw in any desired adjusted position with relation to said annular jaw.

3. A wrench comprising a handle having an annular jaw formed on one end thereof, a swinging jaw pivotally connected at one end to said handle adjacent the jaw thereon, and a supplemental jaw pivotally connected to said annular jaw, the inner face of said supplemental jaw being curved to conform to the curvature of the peripheral edge of the annular jaw, as and for the purpose described.

4;. A' wrench comprising a handle having an annular jaw formed on one end thereof, a swinging jaw pivotally connected at one end to said handle adjacent the annular jaw thereon, the peripheral edge of said annular jaw being formed with a series of teeth, and a supplemental aw pivotally connected to said annular jaw, the inner face of said supplemental jaw being curved to conform to the curvature of the peripheral edge of said annular jaw, and the outer face of said supplemental jaw being curved to form a seat for the reception of the work to be turned by the wrench, as and for the purpose described.

5. A wrench comprisin a handle having an annular jaw formed on one end thereof, the peripheral edge of said annular jaw being formed with a series of teeth, a swinging jaw pivotally connected at one end to said handle adjacent the annular jaw, and a supplemental jaw pivotally and slidably connected to said annular jaw, the inner face of said supplemental jaw being provided with a series of teeth for engagement with a portion of the teeth formed on the periphery of said annular jaw.

6. A wrench comprising a handle having an annular aw formed on one end thereof, and a swinging jaw pivotally connected at one end to. said handle adjacent the annular jaw, the peripheral edge of said annular jaw being formed with a series of teeth, a

pivot pin disposed through the axial center of said annular jaw, link bars pivotally connected to the opposite ends of said pivot pin-and arranged upon the opposite faces of said annular jaw, the outer ends of said links being formed with longitudinal slots therein, a pin slidably disposed in said slots, a supplemental jaw mounted on said last mentioned pin between said links, and the inner face of said jaw being provided with a series of teeth for engagement with the teeth of the peripheral edge of the annular jaw.

7. A wrench comprising a handle having an annular j aw-formed on one end thereof, a swinging jaw pivotally connected at one end 1 to said handle adjacent the annular jaw, a pivot pin disposed through the axial center of said annular jaw, link bars pivotally mounted on opposite ends of the pivot pin and arranged upon the opposite faces of said annular aw, the outer ends of said links projecting beyond the peripheral edgeof said annular jaw, and a supplemental jaw connected to the projecting ends of said links between the same.

8.. A. wrench comprising a handle having an annular jaw formed onone end thereof, a swinging jaw pivotally connected at one end to said handle adjacent the annular jaw, the peripheral edge of said annular jaw being formed With a series of transverse teeth, a pivot pin disposed through the axial center of said annular jaw, link bars pivotally mounted at their inner ends on the opposite ends of said pivot pin, the outer ends of said links projecting beyond the periphery of said annular jaw, a supplemental jaw slidably connected to the projecting portions of said links, said jaW being provided With a series of teeth upon its inner face for engagement With a portion of the teeth on the peripheral edge of the THOMAS E. HOLLAND. Witnesses:

' RILEY PARSONS,

F. F. MOINTIRE.

Copies 0! thin patent may be obtained for five cents each, by addressing the Commissioner of Paten waihlngton, D. O. 

